Our client really wants to accept orders for both in-stock and out-of-stock items. But when the order is placed they want to capture funds ONLY on the in-stock items, and then capture funds on the out-of-stock items when they are shipped.

Can anyone tell me if this is possible? Any good ideas on where to start with this? I don't want to have to monkey too much with the source code (though I can if needed).

Thanks.